Hi, I have a beko wma765s machine and I recentky change the drum bearings has they had gone. The drum now spins nice and quiet however when it goes into full spin it makes a right racket as if it's vibrating through the metal casing. Tonight I heard bits breaking off and on emptying the clothes from the machine I found a couple of grey plastic bits inside the drum rattling around. Any ideas what it is and what's causing the loud noise?